Those that have already upgraded to this 173.08 driver are having mixed-feelings over this release. The biggest regression in this release is a major slowdown in 2D performance, which some have characterized as rubbish, unusable, and even disasterous. More information can be found in the 173.08 discussion thread. There is also a very lengthy thread on this major NVIDIA 2D slowdown on NVIDIA's official Linux support forum at NvNews.
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via Twitter or contacted via MichaelLarabel.com.